/*
 * Copyright (c) 2014, Peter Thorson. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *     * Redistributions of source code must retain the above copyright
 *       notice, this list of conditions and the following disclaimer.
 *     * Redistributions in binary form must reproduce the above copyright
 *       notice, this list of conditions and the following disclaimer in the
 *       documentation and/or other materials provided with the distribution.
 *     * Neither the name of the WebSocket++ Project nor the
 *       names of its contributors may be used to endorse or promote products
 *       derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL PETER THORSON BE LIABLE FOR ANY
 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *
 */

#ifndef WEBSOCKETPP_UTILITIES_IMPL_HPP
#define WEBSOCKETPP_UTILITIES_IMPL_HPP

#include <algorithm>
#include <string>

namespace websocketpp
{
namespace utility
{

inline std::string to_lower (std::string const &in)
{
  std::string out = in;
  std::transform (out.begin(), out.end(), out.begin(), ::tolower);
  return out;
}

inline std::string to_hex (std::string const &input)
{
  std::string output;
  std::string hex = "0123456789ABCDEF";

  for (size_t i = 0; i < input.size(); i++) {
    output += hex[ (input[i] & 0xF0) >> 4];
    output += hex[input[i] & 0x0F];
    output += " ";
  }

  return output;
}

inline std::string to_hex (uint8_t const *input, size_t length)
{
  std::string output;
  std::string hex = "0123456789ABCDEF";

  for (size_t i = 0; i < length; i++) {
    output += hex[ (input[i] & 0xF0) >> 4];
    output += hex[input[i] & 0x0F];
    output += " ";
  }

  return output;
}

inline std::string to_hex (const char *input, size_t length)
{
  return to_hex (reinterpret_cast<const uint8_t *> (input), length);
}

inline std::string string_replace_all (std::string subject, std::string const &
                                       search, std::string const &replace)
{
  size_t pos = 0;

  while ( (pos = subject.find (search, pos) ) != std::string::npos) {
    subject.replace (pos, search.length(), replace);
    pos += replace.length();
  }

  return subject;
}

} // namespace utility
} // namespace websocketpp

#endif // WEBSOCKETPP_UTILITIES_IMPL_HPP
